Sound-reproducing machine.



PATENTED JUNE 30, 1903..

E. 1). GLEASON. SOUND REPRODUGING MACHINE.

APPLICATION FILED NOV. 4, 1902.

N0 MODEL.

m: NORRIS PEYERS co. Pnorauwa, vusumumu, o. c.

UNITED STATES l Patented June 30, 1903.

PATENT OFFICE.

EDWARD D. GLEASON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO JULIUSWELLNER, OF PHILADELPHIA, PENNSYLVANIA.

SOUN D-REPRODUCING MACHINE.

SEEGIFIGATION formingpart of Letters Patent No. 732,292, dated June 30,1903.

Application filed November 4;, 1902. Serial No. 130,011. No model- Toall whom it may concern:

Be it known that I, EDWARD D. GLEASON, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain the sound-box to rotate and bringthe stylus into engagement with the record with yielding pressure and inmechanism for disengaging the stylus from the record at the end of itsforward movement and returning it in an elevated position to thestarting-point, all of which will be hereinafter claimed and fullydescribed.

Referring to the accompanying page of drawings, Figure 1 illustrates aplan view of a sound reproducing machine constructed after the manner ofmy improvements, with a portion of the casing broken away to moreclearly show some of the internal working parts; and Fig. 2 is a sideelevation of what is illustrated in Fig. 1

Referring to the reference-letters of the drawings, A represents anelectric motor, the armature A of which is mounted upon a driving-shaftB, which is provided with a wormwheel 0, operating the feed mechanism,and a bevel-wheel D, operating the turn-table carrying the record-disk.The turn-table E is mounted upon a shaft E, which is provided with abevel-gear E meshing with the bevelgear D, which, as before stated, isoperated by the driving-shaft B. The record-disk E rests upon theturn-table E and is turned by a pin e, projecting from the turn-tableinto an opening 6 in the record-disk. f

I F represents the sound-box, which is provided in the ordinary way witha diaphragm F, a stylus-lever W, and a stylus F The sound-box F isfulcrumed to an armG, which is connected to and forms part of abracketGr,

having bearings g and g, slidable upon a fixed rod H, supported byuprights n and 'n. The arm G in moving forward an d backward rests upona rail R, which it is forced to engage by reason of a fixed leaf-springS, bearing against a projecting ledge s on the under side of the bracketG. As it is not an essential feature of my invention that the arm Gshould have any movement other than its forward and backward movementupon the rod H, the rail R in some instances may be dispensed with andthe bracket G guided upon a rod H, square in cross-section, instead ofthe round one I have illustrated.

The feeding of the sound-box and stylus forward is accomplished by meansof the stylus engaging the helical groove of the record, and the stylusis caused to bear upon the record with yielding pressure by reason ofits pivotal connection with the arm G and a rod T, fulcrumed to thesound box at one end and carried by a bearing 23 at the other, betweenwhich I and the extreme'end of the rod T is a spiral spring 8. Thereturn-feed for the sound-box and its connecting parts is accomplishedby the worm O engaging a worm-wheel I, which is provided with asegmental rack J, timed to engage at intervals a pinion K on a shaft K,which also carries a segment L to receive a metal band L, one end ofwhich is connected to the segment and theother end to the bracket G. 7

After the sound-box has been carried forward by the engagement of thestylus with the groove of the record and before the backward or returnfeed comes into play or at the instant it becomes operative it isnecessary to disengage the stylus from the record. This is accomplishedby placing on the under side of the segmental rackJ a cam M, which at afixed time presses against a roller m, mounted in the end of a rod 112,guided in a bearing m and connected to a lever m The lever m operates arocking frame 0, which embraces ashaft 0, to which the lever m issecured, and uprights 0 0', secured at the lower end to the shaft 0 andat the upper end to a rail 0 The extreme end. of the rod T, which movesthe sound-box, is provided with a bearing t, in which is supported aroller 2?, which, being at all times in the path of the rail 0 is movedto turn the sound-box and raise the stylus from the record when therocking frame 0 is operated through the medium of its connecting partsand the cam M.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

1. A sound-reproducing machine, comprising a revoluble record-disk, asound-box provided with a diaphragm and stylus, an arm carrying thesound-box journaled upon a fixed bar, a segment provided with a hand,one end of which is connected to said arm, a pinion for turning thesegment and a segmental rack connected to the driving mechanism andadapted to turn the pinion and thereby return the sound-box and stylusafter they have been fed forward by the groove of the record,substantially as described.

2. A sound-reproducing machine, comprising a revoluble record, asound-box provided with a diaphragm and stylus, the latter beingoperated in one direction by the groove of the record, a movable armhaving a bearing in which the sound-box is free to turn, a rod fulcrumedto and adapted to turn the soundbox to release the stylus from therecord at the end of its forward movement and a cam operated by thedriving mechanism to move said rod, substantially as described.

A sound-reproducing machine, comprising a turn-table provided with arecord-disk, a sound-box provided with a diaphragm and stylus carried inone direction by the groove of the record, a slidable arm, one end ofwhich is guided in a bearing and the other being arranged to form ajournal in which the soundbox is free to turn, a segment provided with aband connected to said arm, a rack-andpinion mechanism to operate thesegment, to perform the return movement, a rod fulcrumed to thesound-box and arranged to turn the same and lift the stylus at the endof its forward movement, and a cam for operating the rod, substantiallyas described.

4. A sound-reproducing machine, comprising a rotatable record, a motorfor operating the same, a fulcrumed sound-box provided with a diaphragmand stylus, an arm carrying the sound-box slidable upon a guide, aspring in terposed between the arm and soundbox to cause the latter toturn and bring the stylus to bear upon the record with yieldingpressure, so that the sound-box will be carried forward by the groo\"eof the record, a cam adapted to turn the sound-box and lift the stylusat the end of its forward movement, and a mechanism comprising asegmental rack and pinion to return the sound-box to its initialposition, substantially as specified.

In testimony whereof I aflix: my signature in presence of two witnesses.

EDXVARD D. GLEASON.

\Vitnesses:

DAVID S. WILLIAMS, ARNOLD KATZ.

